Here is a photo taken in Grand Central Station in New York.
Note the "double displacement" effect, an effect which photographers call ghosting. It is caused when the speed of an object exceeds the shutter speed of a camera. Since the camera had a very fast effective shutter speed of about 1/1000 of a second, this orb was probably moving very fast, much faster than any insect would move. Below is a closeup of the moving orb, cropped from the photo above:
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